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Md-11 co-pilot reported receiving a windshear alert; performed a go-around and returned for a visual approach with autopilot and auto throttles off.
| Attributes | |
| ACN | 1408113 |
| Time | |
| Date | 201612 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZZ.Airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | MD-11 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Deviation - Speed All Types Deviation - Track / Heading All Types Inflight Event / Encounter Weather / Turbulence |
Narrative:
On approach; approximately 1000 ft AGL; fully configured for landing; we received a 'head windshear' alert and performed a go around with the captain as pilot flying (PF) and myself as pilot monitoring (pm). We leveled at 4000 ft MSL; 200 kts and were vectored for another ILS. I inserted a new destination; loaded the ILS; selected direct to zzzzz waypoint and cleared the turnpoint. Captain was flying with autopilot on. We descended to 2000 ft MSL and turned base leg. As we were turned in to dogleg to final and cleared for the approach; the autopilot kicked off and I believe went into the go around mode for some reason. We overshot final slightly as we were figuring out what was happening. The captain flew a visual approach with autopilot and auto throttles off and used raw ILS data and PAPI for guidance. Since we lost all our FMS approach speeds; I selected 160 kts based on our previous FMS approach speed of 158 kts. We got a little fast on final (I saw 167 with 160 bow tied; called it out and captain corrected). We landed about 2000 ft from threshold; turned off at first high speed; and taxi in was normal.we don't know if the first windshear alert was valid; or not but; with strong gusty winds; it certainly could have been a real windshear. Either case; we executed a go around and tried another approach. What makes me suspect some sort of malfunction was the autopilot kicking off and the aircraft entering the go around mode on our turn to final for the second approach.
Original NASA ASRS Text
Title: MD-11 Co-pilot reported receiving a WINDSHEAR alert; performed a go-around and returned for a visual approach with autopilot and auto throttles off.
Narrative: On approach; approximately 1000 ft AGL; fully configured for landing; we received a 'Head windshear' alert and performed a go around with the captain as Pilot Flying (PF) and myself as Pilot Monitoring (PM). We leveled at 4000 ft MSL; 200 kts and were vectored for another ILS. I inserted a new destination; loaded the ILS; selected direct to ZZZZZ Waypoint and cleared the turnpoint. Captain was flying with autopilot on. We descended to 2000 ft MSL and turned base leg. As we were turned in to dogleg to final and cleared for the approach; the autopilot kicked off and I believe went into the go around mode for some reason. We overshot final slightly as we were figuring out what was happening. The captain flew a visual approach with autopilot and auto throttles off and used raw ILS data and PAPI for guidance. Since we lost all our FMS approach speeds; I selected 160 kts based on our previous FMS approach speed of 158 kts. We got a little fast on final (I saw 167 with 160 bow tied; called it out and captain corrected). We landed about 2000 ft from threshold; turned off at first high speed; and taxi in was normal.We don't know if the first windshear alert was valid; or not but; with strong gusty winds; it certainly could have been a real windshear. Either case; we executed a go around and tried another approach. What makes me suspect some sort of malfunction was the autopilot kicking off and the aircraft entering the go around mode on our turn to final for the second approach.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.